Type-writing machine.



J. C. HARVEY.

TYPE WRIHNG MACHINE.

APPLiCATION FILED APR.24, 1913.

1,1 5fi5 Patented Sept. '2, H15.

so all wk om it-may concern .7

Be; it known that I, i JosEP .citiZQn-Qf gtheuUnitedStates, residingin .Ohi-

tcagoljin; the"county, .,of :Cook andState of 5 Illinois, have invented certain new and usetion;;. 1', a i-Thisginvention "relates.-.to an adjustable. connection bctweenthe line-space wheel and rotatable platen of ,a typewriting machine.

According tothe present invention, the 1 line-space;wheel, is connected 'frictionall'y to the platen, or in other wordslthe two pa'rtsfiaxle and disk ;11,- also connectedjto theflalfate'n are' connected by means of; a friction clutch," g which is powerful enough to enable-the linei sp aee wheel-to control thepla-ten under ordinar'y; conditions, but which. will nevertheie e lock which mechanically holds the line i space'jwheel' stationary while lithe operator, nnlltS 16 .;on the; end of the platen. axle] are compressthe said spr ngs to-a :greater or .1; by? ineans of the usuaIhand-wheel; applies j elati x'fe adjustment Ii'seifected, the linespace a, :Wheelf may be employed in the usual manner fiv pa'per. 'S aid-llo'ck larrange to be released line-space lcverg'se that after, the platen has been forcibly adjusted, the operator need hereinaijteri; i o

a to the platen p-f-the llSllfaIlLUD'dGIWOOd type s'pacewheel b y ogfvzthei-line-space. mech-m 1' Applieation-filedApril24;1913 serial-misuse. jg};

space; wheel I 5, the latter driven 1e1d sufiicientlyto permit the platen to reed aronndwhile the linerspace Wheel 1d statienarmywhenever the necessity, ar es", l combinewiththis vkind of clutch,-

' p the springs 12 maybeconveni'entlyadjusted ..lf pfiieient force-to the platen to rotate it to adjiistf any'desired line of the works-sheet tothe printingpoint on the, platen. After this fftogefi'ect the line-,feeding movements of ,the.

1 automatically by na-nipulation of the u sua-l A. pay noattention to disconnecting the lock, 5 but at once proceeds to swing the nsualleVerto inep'ace thelplaten,; and.the-loc1-: will -Lathe accompanying drawings, qFignre -1 is alvlew showing my lIWQIlillOIl as ,appl-ledf A E se-34 t a view similar-l-eo Fig 2 With the'parts; in mposition showing how the o,detent i is released just beforethe pawl en--1 ters 'into active engagement with theline s pa'ce heel. Fig.1 is=a sectional view of; ff the clutch; its means for adjusting. the ten iThis is "done by thrusting'bac .the' ciain 19- to its normal inoperatiye position said ca cification-ILLINOIS, hssienon o aonn nwnDEntVeonQ-or U, LBRQVQKLYN NEW n -01; of 3' .t. 1

Specification of Il etters iielt e nti915.

s'ion', and the inethod f Iiiounting' the I detent-locking lever. Fig.5 is'a detail-:per-

, spective of the various parts of the clutch and detent locking'devicef; I

The platen 1 is fixed'upon' anaxle 230111} naled inthe ends-of a"framei3,yand may be rotated" either by ahalndnvheel 4 orjline by pawl 16 pivoted on a! sliding bar 7 operated by a line-space lever 8 and returned by a 'spring 9. 'The line space wheel "isfi'ictionallr clutched to the platen. Y Thisi's' effected means. of i a disk 'lO, fixed upon the --platen axle-to rotate therewith tl1eline=space when! i being. clamped between the disks: Springs .124 lamp the line-space Wheel-Y 5 against the fixed disk 1 1 0; The {disk 11- is splined to theaxlefi by atongne l3: entering a .groove 14.- L The disks mayhave theirgfa ces PIOVldGd with washers 15' of; fiber or other suitable friction giateriah iThe tee-ea of bjhzthfi loosening or tightening of the lock lessen degree.

ate'd to dri 'e the ratchet wheel 5,=the platen wheel, the latter is held fast;orderthatt the clutch may slip-while the-platen is 1'0- ta-ted. The locking of the line-spaee wheel,

to. prevent [it from ro'tating-fwhi 1e the 3151 ten is being rotatively: EldjllStdflS' p'ref erably accomplished by --locking--the dete'n t =17 in engagement with thegteeth 18 of the linespa'ce Wh'eeL -I: For this purpose a: lever 19 provided, having a slot 20,- intowhich -,a pin 21-011 the 'd'tent 17 projects, so that when thessaidlever lil "is moved it'c rW-.ard, or. to the right in Figs. 1; 2 and"3, theicani portion 2 22aft- 'the end-oftheslot 20 rides ov said pin"21=,; and preventskth'ej' detent "from r sing.

The feeding, of the pig lb??? the detent $1 7 to' allotif cam leter 19 -bein'g-i-n the path of 'a pr o'jeey-v'tion 23 on the I line-spacing bar 7,. and being "tiirn lever.

- 20 claimi beioi'e line release the ratchet wheel 'from said holding? space wheel 5. This relieves the operator from the necessity. of. seeing .tothe tracing of the detent after the platen has been adjust ed, and keeps the reciprocating line-space mechanism in constant readiness to rotate the platen without regard as to whether the collar 24;around the platen axle2, and is preyented [from becoming dislodged by a. 1, shoulder 25 'on the said collar and a cupped washer 26, held i i-position by thefhub 0t the, hand wheel 4. 1 4

j Variations may be resorted to within the acluteh frictionally connecting said .platen and ratehet, wheel, a linerspace meohanismtdi-Qtatethe ratchet wheel,:,'means for locking said ratchetxwheelqagainstV rotation, and means for unlocking said ratchetwheel by actuatingthe'linespace.mechanism.. :a

a, 2. Ina typewriting machine, the combina tion with. a line-space wheel and a' platen,

' of means to afford a rotatable adjustment of the platen relatively to the line-spac'eflwheel, comprising ,a clutch connecting. the linespace wheel to the platen, said clutch constructed to yield by the; application'of force I to. turn, the platenv-relatively to-the linespace wheel, a lock adapted to be set in-position to :hold the line-space wheel while the ated by a single movement ofsaid lever to platen, a-ratchet'wheel to rotate the platen,

means when the line-spacemechanisrn is 0perated. A

5. The combination of a platen frame,a

platen, a ratchet wheel to rotate the platen,

" a line-space mechanism to rotate the ratchet {clutch has beenrendered inoperative or not. For facilitating the assembling of the 1 parts, the lever 19 is mounted to vswing on a wheel, a friction clutch between said ratchet wheel and platen, a detent'for aliningfsaid ,ratchet wheel, means for locking said detent to prevent the ratchet Wheel from turning while the platen isadjusted, said looking a line-space mechanism forrotating the ratchet wheel, a clutch between said ratchet wheel and-platen, meansfor locking said ratchet wheel against rotation, leaving the pla'temcapabl'e of rotation by fojrceeX'ceedj -;ing the clutch engagementyand mcan'svdependent upon the actuation of the line-space mechanism for- "unlockingsaid ratchet -.'Iwhe.el-.-."

In a typewritingmachine, the combinetion with a revoluble platen and a ratchet 1 --wheel, of -means continually" pr'ssing: fsaid j pIaten-and ratchet wheel into frictional en-- =gagementfor unitedmovemenhfa detent co -means beingself holdingin locking position, I and means'operated by the line-space mechanism to actuate said locking'means torelease the'detentlm 6.; The combination of a platenf'rame', a I platen, a ratchet-wheel to rotate the platen,

operating with said ratchet wheel, means to co'actwith said. detent'f to lock sa-id ratchet wheel, and thereby. permit independent "rotation of said platen, a pawl," an "operating" lever, and means-operated bysaiol lever to unlock-the ratchet wheel and actuate. the

p p pawl' to drive-the ratchetwheel and platen; .platen is being. forced around relatively 40 thereto, aline space.leyer,-and-means 'oper- 8. In a'typewriting machine, the combi-.

nation with a revoluble' platen, a ratchet release the loclrandurotate the line-space .li' l: h reby fi'ec inga line-space rotation ep a e -jrz a 5 3. The combination with aplaten and a line-space wheel, of an intervening clutch, said. platen, line-space wheel and clutch forming a train permitting; relative adjust- ,ment of the line-spacewheeland platen-by 50 the application of force, mechanically re leasable meaDSi for locking onelmember ofsaid train while the force is being applied to another member of said train to elfect rotatable adjustment between said members, a

line-space lever,gand meansmperated therey to release said releasable; means andaro tate sai' members,

{ii-The combination of a platen frame a p1aten,.a ratchet wheel to rotate the; platen, a line-spacemechanismto rotate the ratchet wheel, a friction clutchbetweenrsaidratchet wheel platen, means for holding said ratchet, wheel from ,rotationfl while. said platen is adjusted, and means controlled by ithe" line-space mechanism to automatically wheel, and line-spacing mechanism, of means continually pressingsa'id platen and ratchet wheel mto frlctional engagement for united movement, a detent c'oeperating with said ratchet wheel, means swinging through a limited: arc to coact. when at one end of 'its 'throw, with said detent, tolock seid ratchet wheel'and thereby-permit independ' 'ent rotation of said platen, and'means'booperating with the line-spacing mechanism,

in the' operation thereof, to "threw "said nswlng-lng means in the opposite direction ,to

[release said lock;

- 9, In a typewriting machine, the combina 'tion with a revolnble platen,- a ratchet wheel;

' and line spacing mechanism, of means continually pressing said platen, and ratchet wheelintofri'ctional engagement for united i -movement,-a detent .coiiperating with j said ratchet wheel, a locking member movable said locking member from'its locking positiony I Ina typewriting 1na chine,'the cornbie nation with a revoinble platen and'a line' spacing wheel, of a friction clutch between the platen and line-spacing wheel, linefspa'c .ing mechanism, a locking deviceto lock saidwheel against rotation and permit the platen to. be [rotated relatively thereto a when sufiicient power applied to overcome the friction of said clutch, andmeans operated by said line-spacing mechanism to actuate said locking device to release the line-spacing wheel and then rotate said wheel to efiect a line-spacing rotation of the platen.

11. In a typewriting machine, the combination with a revoluble platen and a line-v sp'acing ratchet wheel, of a. friction clutch between said wheel and platen, line-spacing mechanism comprising a line-space lever and means operated thereby to rotate said wheel, a detent spring held in engagement with the teeth of said wheel, a lock movable into position to lock the detent against the wheel and prevent the rotationof the wheel when sufficient power is applied to the platen to overcome the friction of theclutch and rotate the platen relatively to the linespace wheel, and means operated. by the line-space lever. during the. initial portion of its movement to actuate said locka-ndref lease the detent, said lever operativeby a to be rotated by hand relativeto and rotate the line-spacing wheel, a line space lever to; act'uate'said slide, the latter having a'hmited initial movement prior to ;the engagement of the pawl with the line spacing wheel, a lock mcvable into an opera tive position to lock the line-spacing wheel,

- wheel ivhen the latter is held st rotation', li a-spacing mechanism comprising" i slide and a pawl carried thereby engage and means carried by said slide it move the lock to inefifi'ective position during the said initial movement of the slide, and" thereby automatically release the ,llIiQ-SPRC- ,.ing wheel to permit line-space rotation thereof when theline-spa'ce lever is operated after the said Wheel has been locked 13., In a typewriting machine, the combination with a revoluhle platen and a line spacing ratchet wheel, of a friction clutch between said wheel and platen of snfiicient power to drive the platen-when said wheel-is rotated, a spring detent to engage the teeth of said wheel to hold the latter at line-space intervals, line-spacing mechanism comprising a slide and a pawl carried thereby to drisve the line-spacing .wheel, said slide having a limited initial movement prior to the engagement of the pawl with thesaid wheel, aleve to actuate said slide, a'lock movable into 'aiid out of locking position to lock said detent-against the line-spacing wheel, and means c'arried by said slide to move said lock out of locking position during said initial movement of the slide, thereby autonia'ti cally releasing the line-spacing wheel tc gore-- vent interference of the lock with. the line of the platen,

spacing rotation V,

Witnesses:

WM. Vi OOLEY, L. W. iJANGFG-RD. 

